Method for treating oil waste in a gas turbine engine
AssigneeSnecma
InventorsGerard Philippe Gauthier, Jean-Pierre Mourlan
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Abstract
The present invention relates to a method for treating an airflow, laden with oil particles, flowing in a tube (9) communicating with a rolling bearing enclosure of a gas turbine engine, wherein said airflow is made to travel into a coking box (20) associated with a heating means, in which the air is heated to a sufficient temperature to coke the oil particles contained in the airflow. Preferably, the solid residues produced by the coking are collected in the coking box (20).
Claims11
A method for treating an airflow, laden with oil particles, flowing in a tube communicating with a rolling bearing enclosure of a gas turbine engine, wherein said airflow is made to travel into a coking box associated with a heating means, in which the air is heated to a sufficient temperature to coke the oil particles contained in the airflow.
The method as claimed in the preceding claim, wherein the solid residues produced by the coking are collected in the coking box.
The method as claimed in one of the preceding claims, wherein said box is attached to said tube so that the airflow travels from the tube into the box.
The method as claimed in the preceding claim for treating said airflow in a gas turbine engine comprising an exhaust cone downstream of the turbine, wherein the box is placed in said exhaust cone so that it is heated by the gases in the exhaust cone.
A gas turbine engine comprising a central ventilation tube communicating with a rolling bearing enclosure of the engine and a gas exhaust cone, said tube opening into the exhaust channel, wherein it comprises a coking box for the treatment of the airflow originating from the rolling bearing enclosure that contains the oil particles, the coking box comprising a cylindrical casing with an opening on one side to receive the airflow from the tube and a means forming chicanes, and being mounted on the central tube so as to be heated by the engine gases from the exhaust cone.
The engine as claimed in the preceding claim whose coking box comprises a means for collecting the coked oil.
The engine as claimed in the preceding claim, whose casing comprises an attachment means at the end of said tube and an internal grid through which the oil particles are sprayed onto the internal wall of the casing and forming a means for collecting the coked oil.
Dependencies are inferred from the claim text.